The free-to-play games.
Monkey Go Happy - New Year 2013(vietnamese version- and it is called THE SAD MONKEY) is a flash PUZZLE game that holds a special place in the heart of ME. (i know how to solve it when just only 7 years old) Even though the name of the song is known, finding the exact version of it can be challenging.(i mean i can't find 100% exact ,because the audio itself is only 16KBPS) software requirement: (search google): SWF player.or directly play from browser using FLASH EMULATOR: https://game24h.vn/chu-